Avogadro - Study guides, Class notes & Summaries

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past papers questions chemistry - November 2020 AS paper 1, 2017 paper 2 A level, paper 1 2019 A level Questions and Answers 100% Pass | Updated 2024
  • past papers questions chemistry - November 2020 AS paper 1, 2017 paper 2 A level, paper 1 2019 A level Questions and Answers 100% Pass | Updated 2024

  • Exam (elaborations) • 20 pages • 2024
  • past papers questions chemistry - November 2020 AS paper 1, 2017 paper 2 A level, paper 1 2019 A level Questions and Answers 100% Pass | Updated 2024 This question is about atomic structure.There is a general trend for an increase in ionisation energy across Period 3. Give one example of an element that deviates from this trend. Explain why this deviation occurs. - Correct Answer ️️ -Aluminium / Al(Outer) electron in (3)p orbital / sub-shell (level) (3p) higher in energy / slightly ...
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Chemistry 111 Key PASSED Questions and  CORRECT Answers
  • Chemistry 111 Key PASSED Questions and CORRECT Answers

  • Exam (elaborations) • 5 pages • 2024
  • Density - ratio of substances mass to volume. Intensive property- meaning the value is independent of the amount of substance Avogadro number - 6.022 x 10^22, 1 mole, term of measurement dimensional analysis - A method of using conversion factors and unit canceling to solve a unit conversion problem. exothermic - chemical reaction that yields a net release of energy in the form of heat endothermic - (of a chemical reaction or compound) occurring or formed with absorption of heat kinet...
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A-level Physics data and formulae
  • A-level Physics data and formulae

  • Summary • 12 pages • 2024
  • A-level Physics data and formulae For use in exams from the June 2017 Series onwards DATA - FUNDAMENTAL CONSTANTS AND VALUES Quantity speed of light in vacuo permeability of free space permittivity of free space magnitude of the charge of electron the Planck constant gravitational constant the Avogadro constant molar gas constant the Boltzmann constant the Stefan constant the Wien constant electron rest mass (equivalent to 5.5 × 10–4 u) magnitude of electron charge/mass ratio prot...
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Chapter 7 Moles and Molar Mass exam with 100% Correct answers already graded A+
  • Chapter 7 Moles and Molar Mass exam with 100% Correct answers already graded A+

  • Exam (elaborations) • 3 pages • 2024
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  • Avogadro's Number in honor of Amadeo Avogadro () The mole (mol) The unit for counting atoms. The mole is a unit for counting just as a dozen or a ream or a gross is used to count. Atomic mass for an element The average relative mass of all the isotopes for the element. 1 mole atoms = 1 mole molecules = The atomic mass of an element in grams contains (2) The atomic mass of an element in grams contains... (1) Avogadro's number of atoms (2) and is def...
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Chem 120 Final Exam | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass
  • Chem 120 Final Exam | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass

  • Exam (elaborations) • 13 pages • 2024
  • Chem 120 Final Exam | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass molecular mass (molecular weight) - Answer -the sum of the atomic masses, in atomic mass units, of all the atoms in the formula of a compound empirical formula - Answer -a chemical formula showing the ratio of elements in a compound rather than the total number of atoms Avogadro's number (Mole) - Answer -6.02 x 10^23 proton - Answer -A subatomic particle that has a positive charge and that is ...
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CHEM 103 Exam 2 Prep Test Questions And All Correct Answers.
  • CHEM 103 Exam 2 Prep Test Questions And All Correct Answers.

  • Exam (elaborations) • 12 pages • 2024
  • What is a chemical formula? - Answer a combination of symbols of the various elements that make up the compound Define Molar Mass - Answer The sum of atomic masses, based on chemical formula What are the units of Molar Mass (MM) - Answer Grams/Mole (g/mol) Number of moles can be found by - Answer a. Atoms of an element b. Molecules of a molecular compound One Mole equals ? - Answer Avogardo's number = 6.022 x 10^23 atoms/molecules How do you calculate molecules and ...
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AS Physics data and formulae
  • AS Physics data and formulae

  • Exam (elaborations) • 6 pages • 2024
  • AS Physics data and formulae For use in exams from the June 2016 Series onwards DATA - FUNDAMENTAL CONSTANTS AND VALUES speed of light in vacuo permeability of free space permittivity of free space magnitude of the charge of electron the Planck constant gravitational constant the Avogadro constant molar gas constant the Boltzmann constant the Stefan constant the Wien constant electron rest mass
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CRS 101 FINAL EXAM STUDY GUIDE 100% Accurate
  • CRS 101 FINAL EXAM STUDY GUIDE 100% Accurate

  • Exam (elaborations) • 15 pages • 2024
  • Describe the AARC (American Association for Respiratory Care) - ANSWER-began as ITA -professional organization of RTs -goal: advocates for the profession to legislative and regulatory bodies and is affiliated with all 50 state respiratory societies Describe CoARC (Commission on Accreditation for Respiratory care) - ANSWER-(1996) accredits and establishes respiratory care educational programs in the US -previously called: JRCTE Describe the NBRC (National Board of Respiratory Care) - ANS...
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Physics 9702 A2 Level Definitions
  • Physics 9702 A2 Level Definitions

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  • Absolute Zero - correct answer-The theoretical temperature at which the molecules of a substance have the lowest energy and hence the substance has minimum internal energy and no kinetic energy acoustic impedance - correct answer-product of density of medium and speed of sound in medium Activity - correct answer-The number of atoms of a radioactive substance that decay per unit time. amplitude modulation - correct answer-amplitude of carrier wave varies in synchrony with the displacement...
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AQA AS level Chemistry exam 2024 questions  with 100% correct answers
  • AQA AS level Chemistry exam 2024 questions with 100% correct answers

  • Exam (elaborations) • 17 pages • 2024
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  • AQA AS level Chemistry exam 2024 questions with 100% correct answers Nucleons - ANSWERS Protons and neutrons Electrons (location) - ANSWERS Surrounding the nucleus Relative mass of an electron - ANSWERS 1/1840 Strong nuclear force - ANSWERS The way protons and neutrons are held together in the nucleus Electrostatic forces - ANSWERS The attraction between protons and electrons that hold them together in the atom Atomic Number (Z) - ANSWERS The number of protons in the nucleus Mass nu...
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